Safe Ways to Surf the Web

The mass use of the internet means almost 50% of the world’s population has access to the World Wide Web. With the great power to communicate, connect, and create the internet provides us comes with great responsibility, there it is also important to create an optimal environment especially for those who spend long spans of time using computers.

 

Guidelines for Safely Surfing

  1. Setting up the Proper Operating System Updates

Your operation system will need to be constantly updated by the developer(Be aware of fake updates created by sources that are not your developer, or even those that claim to be). As systems are tweaked they are routinely updated, keeping up with updates especially with security software assures your computer is prepared to handle  viruses that may come along. Refusing to update makes you susceptible to malware.

2.Caution with Personal Information

With very sensitive information such as social security, bank accounts, and addresses they needs to be given cautiously. Assuring that providing such information is necessary. If necessary assure that the site is secure (avoiding rogue websites especially those that ask for bank information) so it isn’t open for anyone to access. Even when using social media giving out personal information like your address can put you at risk.

3. Assure Firewalls are Operating

Doing so is very simple such as opening system preferences or control panel and assuring that firewalls are on.  A firewall keeps any unauthorized source from snooping around on your computer. Keeping it updated can help avoid many types of malware.

4. Know what you Download

Downloading anything onto you computer should be done with care. Assure the website you are using to download is trustworthy, maybe looking for reviews. Avoid too good to be true offers (Win a Free iPad). Any “bundle” downloads that may carry additional files outside of the initial use should be treated with suspicion.

kwolanne computer safety ergonomic multimedia digital media 2

Ergonomics

When using the computer especially for a long time it is very important to use proper computer ergonomic. Your body in a few decades will surely thank you. Elevating the monitor to eye level, and placing the keyboard appropriately to achieve a 90 degrees angle with arms and sitting tall are small ways to improve sitting posture.

Giving yourself breaks after an hour of work for a few minutes will loosen up your body giving you time to move around. Doing simple exercises like shaking hands and shoulder at your side relaxes muscles. If you experience chronic pain, stiffness, or weakness you should discuss this with our doctor for further treatment (ignoring it will only make thing worse).

 

Advertisements

Building Blocks of a Computer

The ultra light, multipurpose and sleek Smartphones have come a long way from their ancestors the 50 ton ENIAC that was used to make calculations. The fist computer engineers could have only dreamed of what their groundbreaking inventions would evolve into after less than a century. A century’s worth of innovation  has created modern computers which all share many basic components.

 

The Mastermind 

The central processing unit (CPU) is in simple terms the brain of the computer. The CPU composed of complex sets of circuits used to converts data input into information output is made up of the arithmetic/logical unit and control unit. The arithmetic/logical unit carries out mathematical problems  and logical procedures (such as comparisons). While the control unit directs other parts of the computer to carry out operations.

In order for computers to execute and operation the instructions must first be already stored in the memory (To ride a bike you have to know how to do so prior to getting on). The control unit finds and reads the instructions from the memory, then directs those instructions to be followed by the arithmetic/ logical units. The arithmetic and/or logical unit follows the given instruction and stores the answers in the computer’s memory.

kwolanne computer design multimedia digital media

Short Term Memory vs. Long Term Memory

In terms of computers the short-term memory can be likened to the RAM while the Hard Drive can be likened to long-term memory. RAM an acronym for random access memory stores the operating system and other data in current use. As long as the computer is in use the RAM can store data which makes it more accessible.

A hard drive holds all the data of the computer,  the hard disk is a physical part of the computer that holds the memory. Stored magnetically in multiple layered disk it can be accessed anytime due to its ability to spin quickly. RAM information after the computer closes or becomes too full is sent to the hard drive.

Monitor

The monitor is the most used output device. LCD technology is commonly used for a lighter and greener alternatives. The projection surfaces are called screens, where information is actually displayed. Most modern LCD screens use a 15:9 ratio. Using primary additive colors the monitor depending on the bit depth processing abilities can display tens of millions of colors.

 

This is certainly not all of the components computers share, simply the basic components. As technology evolves ever so rapidly, so will these basic components becoming more complex and efficient. One day the computers used will be come as unrecognizable to modern users as modern computers are unrecognizable to the first computer engineers, all in the name of progress.